Invitations Spring 2024: lectures in Copenhagen and Lund Universities
Craiova, Romania, the 20 th October 2023
"Invited to participate as a soloist in the Concert no. 1 in C major for piano and orchestra, op. 15 of Ludwig van Beethvoven was Per Enflo.
A Swede settled in the United States, this respectable gentleman is not only a pianist so good that he has touched all the meridians of the world with his art, but also a renowned mathematician.
Two fields that seem so far apart, but which, at the highest level, approach asymptotically. Let us think only of Pythagoras and the sacred importance he attached to music.
Per Enflo has not only a remarkable destiny, but also a long-lasting one, which I wish twice as long.
At 80, he still has the energy to let himself be swept up in the gaiety of Beethoven's composition with the enthusiasm of a toddler (until his piece began, he seemed to be struggling to resist the temptation to touch the keyboard).
What is the secret of such a zest for life at such an advanced age?
But perhaps that is not the question, but the answer.
With his lordship's permission, I will also draw a parallel between the way he crossed his hands on the piano keys and the way of multiplying the means and extremes of a proportion.
Photos by my friend Daniel Botea, who, although he is incredibly old, enjoyed the same as me, like a child that is, all the wonders that the concert offered.
Autor: Iris Gottlieb (sursa – www.vox.com)
Google translation from original Romanian, Facebook:
IWOTA 2023 July 31 - August 4, 2023, 34th International Workshop on Operator Theory and its Applications, University of Helsinki, Finland read more >>
A history of solving some famous problems in mathematical analysis
This paper provides a historical view of what functional analysis is, a biography of Per H. Enflo and a short view of four fundamental problems in the geometry of Banach spaces.
It gives the story of how Enflo, after several years of work, managed to solve three of these problems. It is a story of trying many ideas, testing them on simpler problems, trying to combine different techniques for handling different aspects of the problems, making many failed attempts and finally succeeding.
In 1966 Enflo found a general strategy for solving many problems in infinite dimensions, by combining appropriate finite-dimensional techniques with induction procedures. When applied to the old, fundamental problems in functional analysis, this has led to new concepts, problems, techniques and results in analysis. These developments have been applied also in several other areas of mathematics and computer science.
P H ENFLO
Department of Mathematical Sciences, Kent State University, Kent, OH, USA
M S MOSLEHIAN
Department of Pure Mathematics, Center of Excellence in Analysis on Algebraic Structures (CEAAS), Ferdowsi University of Mashhad, Mashhad, Iran
J B SEOANE-SEPÚLVEDA
Instituto de Matemática Interdisciplinar (IMI), Facultad de Ciencias Matemáticas, Departamento de Análisis Matemático y Matemática Aplicada, Universidad Complutense de Madrid, Madrid, Spain
When did you make the decision to go into math instead of music?
I have never made, and will never make, any such decision